Constructs are the creations of the Makers, given life by a Heart Stone created from a Maker's soul. Unlike most beings in Creation, the souls of Makers are too ancient to be drawn to the Kingdom of the Dead. As such, their souls are used to create Heart Stones that are then used to give life to constructs. Some constructs retain memories of their lives as Makers and have bodies of flesh and blood in their dreams.

There are other methods to creating constructs, however. The Maker Shaman Muria attempted to use a fire spirit to give life to a construct, but the result was an utterly insane and murderous being. The Mad Smith created the Abyssal Forge to draw on the power of the Abyss to create powerful and destructive constructs. However, the Abyssal Forge also proved to be entirely mad.

By the time the End War was concluded with the forces of Hell standing triumphant, most of the constructs in the Forge Lands had been either destroyed or succumbed to Corruption while those sent to Earth had been enslaved by the Destroyer.